Merge "Remove overlay when DC is mirroring" into sc-v2-dev am: c936811c79 am: 7591c10b95

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16215199

Change-Id: Ic4c7e49d9a7ade723bd2b31f007508ab2d998bf9